[tex]\mathrm{H}_{3} \mathrm{O}^{+} \text {in stomach }=\frac{3.0 \times 10^{-5} \mathrm{M}}{ }[/tex]
Explanation:
Nexium (Generic name: Esomeprazole Magnesium) basically used to treat stomach acid problems, by decreasing amount of acid secretion and Increasing pH needed for body.
- [tex]\mathrm{H}_{3} \mathrm{O}^{+}[/tex] in stomach is gastric acid formed by following reaction
[tex]\mathbf{H C l}+\mathbf{H}_{2} \mathbf{O} \longrightarrow \mathbf{H}_{3} \mathbf{O}^{+}+\mathbf{C l}^{-}[/tex]
- The [tex]p H[/tex] of a solution can be found by using formula:
[tex]-\log \left[\mathbf{H}_{3} \mathbf{O}^{+}\right]=p H[/tex]
So here [tex]p H[/tex] in Larry’s stomach = 4.52
From above formula hydronium ion concentration is
[tex]\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=10^{-p H}=10^{-4.52}=3.0 \times 10^{-5} \mathrm{M}[/tex]
